Exatest Arithmetic Speed Drill vs 21 Trainer

Have you ever wanted to improve your mental arithmetic speed? Attempting this speed drill daily will surely help you achieve your goal! This app gives you 120 seconds to complete as many mental math problems as possible. When the timer is up your score will be saved to a chart to track your progression Challenge your friends using Daily mode The Daily Challenge provides the exact same mental arithmetic questions globally across all Exatest players each day. This mode is available to play once per day and scores can be shared with a friend. Find out who can get the highest scores! Watch as you improve day to day! This app is also useful for an upcoming trading interview. Being able to solve mental arithmetic questions on the spot can be practiced and speed can be trained.

21 Trainer is a focused practice app for learning blackjack fundamentals and mastering the Hi-Lo counting system. Play hands in a clean table view, then switch to dedicated training and quick drills to build speed and accuracy. Features: - Play mode to practice real decision flow hand by hand. - Training mode for running and true count practice with optional quizzes. - Quick Drills with adjustable duration, auto-advance pace, mid-quizzes, and a final check. - Detailed statistics across play, training, and drills: hands played, win rate, counting accuracy, and decision time. - Customization for decks, themes, card styles, and quiz options. Whether you are new to counting or polishing your skills, 21 Trainer helps you practice deliberately and track your progress over time.